A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
Classification: Copper washers including spring washers not threaded
NSN 7035-01-474-2768
NSN 6240-01-516-6243
NSN 5905-01-004-6272
NSN 6105-01-492-5723
NSN 6240-01-555-8365
NSN 6135-01-367-6203
NSN 5935-01-375-1263
NSN 6110-00-686-0517
NSN 5996-01-052-3827
NSN 5965-00-175-8972
NSN 6320-00-894-1644
NSN 5950-00-604-2899